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Opinions on this BMS
#1
Hello;
I am interested in opinions on using this for my 7s80p battery BMS.

https://www.electriccarpartscompany.com/...EQUALIZERS


I am struggling with Stuart Pittaways system (old eyes and not good skills trying to build the boards {I am having about a 50% success rate on boards running correctly and keeping the controller up and running.

I am not opposed to using Batrium, just have not gone their yet.

Bob
Bob - has trouble wiring a 3-way switch Blush
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#2
Very happy with them, I have 14S140P, I have a BMS to cut in OV or UV but these maintain the system mostly balanced. If your packs are not correctly matched in capacity there no BMS or balancer than can correct this.
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#3
Above is ONLY balancers without ANY feedback. So you still need to complement a BMS to it and a feedback so you know whats going on. personally i would not recommend it at all because people dont know if they are balancing or not. Yes people state the battery are in balance and therefore its working... But how do you know?

Lets say you drive 150km/h on the road.. Just because the police havent pulled you over doesnt make the speed legal Tongue

Buying above when planning to buy batrium or other is just to throw money in the lake because above is dead darn expensive to what they actually do. The balance current is rather low at voltage ranges diff like 100mV. They only balance at full current when voltage diff is like 2V....
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#4
Thanks for the responses guys.

I have 2 devices that alarm when the packs get to far out of balance. That is what I was using before and they seemed to serve my purpose rather well.
My 18650 packs aren't the best (previous sentence), I thought the balance current and specs (50mV) sounded pretty good for keeping the packs stabilized.

Their may be a Batrium in my future.
Bob - has trouble wiring a 3-way switch Blush
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